Two years after filing a widely publicized lawsuit, a Colorado couple has reached a settlement with Pfizer over allegations the drugmaker failed to sufficiently warn that its Rimadyl medication, a non-steroidal anti-inflammatory treatment for dogs, can cause severe harm. And now, the couple plans to take the proceeds to start a campaign to raise awareness about what they say are the dangers of the drug. The settlement closes a chapter on a widely publicized controversy over Rimadyl, which has been one a popular and heavily promoted veterinary tool for dogs suffering from arthritic pain. However, serious side effects prompted a class action lawsuit that was filed in 1999 and resolved five years later. Since then, however, countless pet owners have complained they were unaware of the serious and specific nature of the potential adverse events.